Yuniarti, B. D. P., E. Budi, and H. Nasbey. “Analisis Morfologi Pori Karbon Aktif Berbahan Dasar Arang Tempurung Kelapa Dengan Variasi Tekanan Gas Argon (Ar)”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL), Vol. 2, no. 1, Oct. 2013, pp. 53 -57, http://103.8.12.212:33180/unj/index.php/prosidingsnf/article/view/6123.